Malicious PDF — malware analysis report

Static analysis result for SHA-256 7c559a8786c39431…

MALICIOUS

PDF

46.3 KB Created: 2020-07-24 22:59:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: bc3462d22f252acd879e65650570294c SHA-1: d6e8c065ff5ff55fb776ff33124e09350c36bb45 SHA-256: 7c559a8786c39431ccc03ab28c09c9128bffe41fec180901ee4ff96833c05053
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains multiple heuristics indicating it is a malicious redirector and part of an SEO link farm, designed to phish users. The primary malicious URL identified is a redirector that leads to a potentially harmful site. While no scripts were extracted, the PDF structure and embedded links strongly suggest a social engineering attack.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.ru/pify?keyword=alta+daily+snow+report In PDF document text
    • http://files.mysterytomb.com/uploads/1/3/1/4/131453028/2543991.pdfIn PDF document text
    • http://files.azpeorialodge31.org/uploads/1/3/1/8/131857049/pilazixobu_kudonexizirad_kufezupoka_weximudagif.pdfIn PDF document text
    • http://files.martelladesign.com/uploads/1/3/0/9/130968920/kilabopo-kejole-disexize.pdfIn PDF document text
    • http://files.mlkswim.com/uploads/1/3/1/3/131383777/sosalebazu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0623/8626/files/2810601193.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0054/4931/files/6055268703.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9961/1553/files/vizisag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1746/2182/files/samum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5359/6310/files/gediregabovuseri.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/23651487672.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/94323725826.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5895/3369/files/mopevodabovasolonunara.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9450/6661/files/92081679180.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8946/8328/files/jigazixufimipomukad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7905/5000/files/tafibemuregefa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0982/6213/files/40218902387.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007772.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7772 4924 bytes
SHA-256: 57fea716b09121a5a6e553e0b87b45777fea37e40bcb355aa61d28eebaf2a31f
font_01_sfnt_off00008851.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8851 10428 bytes
SHA-256: 7f6155638cf1a196cf015395ad8922cb788975d55844fd62cd3c4b2a52462656

Open this report in the interactive analyzer, or submit your own file for analysis.